def _read_bytes(stream):
ms = IO.MemoryStream()
buf = Array.CreateInstance(System.Byte, 2048)
while True:
bytes = stream.Read(buf, 0, buf.Length)
if bytes == 0:
break
else:
ms.Write(buf, 0, bytes)
retval = ms.ToArray()
ms.Close()
return retval
def compress(data):
bytes = _string_to_bytearr(data)
ms = IO.MemoryStream()
gz = IO.Compression.DeflateStream(
ms, IO.Compression.CompressionMode.Compress, True)
gz.Write(bytes, 0, bytes.Length)
gz.Close()
ms.Position = 0 # fseek 0
bytes = ms.ToArray()
retval = _bytearr_to_string(bytes)
ms.Close()
return retval
def decompress(data):
these_bytes = _string_to_bytearr(data)
ms = IO.MemoryStream()
ms.Write(bytes, 0, these_bytes.Length)
ms.Position = 0 # fseek 0
gz = IO.Compression.DeflateStream(
ms, IO.Compression.CompressionMode.Decompress)
these_bytes = _read_bytes(gz)
retval = _bytearr_to_string(these_bytes)
gz.Close()
return retval
def compress(data):
""" data compression """
these_bytes = _string_to_bytearr(data)
ms_ = IO.MemoryStream()
gz_ = IO.Compression.DeflateStream(
ms_, IO.Compression.CompressionMode.Compress, True)
gz_.Write(these_bytes, 0, these_bytes.Length)
gz_.Close()
ms_.Position = 0 # fseek 0
these_bytes = ms_.ToArray()
retval = _bytearr_to_string(these_bytes)
ms_.Close()
return retval